Pass value from one form to another form in c#

Question

I have to pass id from one form to another from in C#.

I am not able to do this.

The C# code is:

private void btnedit_Click(object sender, EventArgs e)
{
    foreach (DataGridViewRow a in dataGridViewUnPaidList.Rows) 
    {
        if (a.Cells[0].Value != null)
        {
            Convert.ToInt64(a.Cells[1].Value); // i have to pass this id in AddInvoice() form
            AddInvoice ad = new AddInvoice();
            ad.Show();
            NonPaideData non = new NonPaideData();
            non.Hide();
        }
        else
        {
        MessageBox.Show("Now Row Is Selected");
        }
    }
}

Can anybody tell me what I am doing wrong?

Ry- · Accepted Answer · 2012-08-04 18:53:07Z

5

Make a property in AddInvoice:

public long CellValue { get; set }

Assign to it:

private void btnedit_Click(object sender, EventArgs e)
{
    foreach (DataGridViewRow a in dataGridViewUnPaidList.Rows)
    {
        if (a.Cells[0].Value != null)
        {
            AddInvoice ad = new AddInvoice();
            ad.CellValue = Convert.ToInt64(a.Cells[1].Value);
            ad.Show();

            NonPaideData non = new NonPaideData();
            non.Hide();
        }
        else
        {
            MessageBox.Show("Now Row Is Selected");
        }
    }

And just use it in AddInvoice as CellValue.

Oh, and if that's actually the code, I think you probably meant this.Hide(); instead of creating a new NonPaideData and hiding that.

answered Aug 4, 2012 at 18:53

Ry-♦

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Comments

Adi Lester · Accepted Answer · 2012-08-04 20:09:04Z

4

In Form1

private void ShowForm2()
{
    string value = TheTextBox.Text;
    Form2 newForm = new Form2();
    newForm.TheValue = value;
    newForm.ShowDialog();
}

In Form2

private string _theValue;
public string TheValue 
{ 
    get
    {
        return _theValue;
    }
    set
    {
        _theValue = value; 
        // do something with _theValue so that it
        // appears in the UI

    }
}

See this code i think this will help you.

edited Aug 4, 2012 at 20:09

Adi Lester

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answered Aug 4, 2012 at 19:39

Mansinh

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